Water treatment device and water treatment method

a technology of water treatment device and water treatment method, which is applied in water/sludge/sewage treatment, specific water treatment objectives, chemistry apparatus and processes, etc., can solve the problem of ineffective radiation of ultraviolet light, and achieve the effect of improving the effect of water treatmen

Active Publication Date: 2019-08-22
NIKKISO COMPANY +2
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  • Abstract
  • Description
  • Claims
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Benefits of technology

[0015]According to the embodiment, the flow of the water subject to treatment in the inner pipe is straightened by ensuing that the pressure loss is not less than 5 kPa and not more than 20 kPa. This ensures that the water subject to treatment as a whole is uniformly affected by ultraviolet light and enhances the effect of water treatment.

Problems solved by technology

It has therefore been impossible to radiate ultraviolet light efficiently.

Method used

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  • Water treatment device and water treatment method

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Embodiment Construction

[0018]The invention will now be described by reference to the preferred embodiments. This does not intend to limit the scope of the present invention, but to exemplify the invention.

[0019]A detailed description will be given of embodiments of the present invention with reference to the drawings. Like numerals are used in the description to denote like elements and a duplicate description is omitted as appropriate.

[0020]The FIGURE schematically shows a configuration of a water treatment device 10 according to the embodiment. The water treatment device 10 includes a dual-pipe structure unit 12, a light source unit 14, and an introduction pipe 16. The dual-pipe structure unit 12 includes an outer pipe 20 and an inner pipe 30. The water treatment device 10 is a device for irradiating water subject to treatment flowing in the inner pipe 30 with ultraviolet light to sterilize the water.

[0021]In this specification, the longitudinal direction of the outer pipe 20 and the inner pipe 30 may b...

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Abstract

A water treatment device includes: a dual-pipe structure unit including an outer pipe, an inner pipe provided in the outer pipe, and a prevention member provided between the outer pipe and the inner pipe; and a light source unit radiating ultraviolet light in the axial direction to irradiate water subject to treatment flowing in the inner pipe. The inner pipe includes an opposing end facing the light source unit across a gap and an inflow end positioned opposite to the opposing end. The outer pipe includes an outflow port provided on an outer circumferential surface of the outer pipe. The water subject to treatment flowing out of the inner pipe via the gap flows out from the outflow port.

Description

RELATED APPLICATION[0001]Priority is claimed to Japanese Patent Application No. 2016-212761, filed on Oct. 31, 2016, the entire content of which is incorporated herein by reference.BACKGROUND OF THE INVENTION1. Field of the Invention[0002]The present invention relates to a water treatment device, and, more particularly, a technology of irradiating water subject to treatment with ultraviolet light.2. Description of the Related Art[0003]It is known that ultraviolet light has sterilization capability. Devices that radiate ultraviolet light are used for sterilization in medical and food processing fronts. Devices that sterilize water subject to treatment continuously by irradiating the water subject to treatment with ultraviolet light are also used. One example is a device adapted to radiate ultraviolet light in a direction perpendicular to the direction of flow of the water subject to treatment.[0004]In a configuration in which ultraviolet light is radiated in a direction perpendicular...

Claims

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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): C02F1/32
CPCC02F1/325C02F2303/04C02F2201/3222C02F2201/004C02F1/32C02F2201/003C02F2201/3225Y02E10/20
Inventor OCHI, TETSUMIWATANABE, SHINYASHIGA, JUNICHIKUSANO, TSUKASATSUGA, EIICHIKAWAKAMI, YUSUKE
Owner NIKKISO COMPANY
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